In week 7 (Ajax) you will learn how to support the ability of various areas on the page to live their own cycles with own small roundtrips to the server. This makes a Web page something very different from what it was seen before.
Week 6 had a goal of allowing you to understand how to manipulate the XML (and HTML) information delivered in various ways (including Ajax - where in week8 the focus will be on the delivery mechanism). JavaScript can analyze and modify documents delivered to the client in all possible ways. This is a good mechanism of adding your interpretations, design, filtering and additional content to the XML and html files that do not have to be delivered as tables but after you get (via DOM/JavaScript) the info - it can be shown in some nice html/css format with additional text. W8 shows how to get those files (XML, HTML) for THE FOLLOWING JavaScript processing - this is a good way of project enhancement of the simplified labs. You can get an XML file from the server and then parse its DOM by JavaScript, get the necessary info out and present it in a nice html/css.
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